Chroma 61705 - General Information; Introduction; Key Features; Specifications

General Information
1-1
1. General Information
1.1 Introduction
The Chroma AC Source 61705 is a high efficiency, 3-phase AC power source which provides
sine wave output with low distortion, and accurate measurement of power. The DSP
microprocessor generates accurate, stable output voltage and frequency. The PWM design
of power stage allows for full volt-ampere into loads. The front panel has both RPG (rotary
pulse generator) and keypad controls for setting the output voltage and frequency. The LCD
provides a complete operating state of the unit to the user. Remote programming is
accomplished either through the GPIB bus or the RS-232C serial port.
1.2 Key Features
A. Configuration
 Local operation from the keypad on the front panel.
 Remote operation via GPIB or RS-232C interface.
 Protection against Over-power, Over-current, Over-temperature and Fan-fail.
 Temperature controlled fan speed.
 Built-in output isolation relays.
B. Input/Output
 Selective output voltage (Neutral to Line) with full scale of 150V/300V.
 Input voltage range 61705: 200 ~ 240 V
LL
, 3 phases, 4 wires ∆ or
346~ 415 V
LL
, 3 phases, 5 wires Y
 Measurement of V, I, P, CF and PF.
 Remotely inhibited control.
 AC ON/OFF output signal.
1.3 Specifications
The operation specifications of the model 61705 are listed below. All specifications have
been tested according to the standard test procedures of Chroma, and are based on a remote
sense connection, 25 ± 1°C, and resistor load unless specified otherwise.